Finding the Fourth Proportional to 305,176.75, 421,148.99 and 169,216.44
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Solution
The fourth proportional to 305,176.75, 421,148.99 and 169,216.44 is: 233,521.50
Step by Step Solution
- Step 1: Write the proportion equation
305,176.75 : 421,148.99 = 169,216.44 : x - Step 2: Convert to fraction form
305,176.75/421,148.99 = 169,216.44/x - Step 3: Cross multiply
305,176.75x = 421,148.99 × 169,216.44 - Step 4: Simplify right side
305,176.75x = 71,265,332,797.40 - Step 5: Solve for x
x = 71,265,332,797.40/305,176.75 - Step 6: Final answer
x = 233,521.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.